Ladder



M. J. BATELJA Aug. 15, 1950 LADDER Filed Aug. 27, 1945 Patented Aug. 15, 1950 UNITED STATES PATENT OFFICE LADDER Michael J. Batelja, Portland, Oreg.

Application August 27, 1945, Serial No. 612,760

2 Claims. 1

My invention has for an object to provide a step-ladder whose side pieces and steps may be constructed of wood. f

Heretofore it has been the practice to make the side pieces of a ladder each of a single thickness of wood, such as 2''fby 4. If there happens to be a defect in one of `the side pieces or uprights, it will break easily, with consequent danger to the user.

It is therefore one of the objects of my invention to provide a ladder, whose side pieces or uprights ,are each made of two pieces separated by blocks and securely nailed; riveted or bolted together, using two 1" by 4" boards to each side piece or upright. Thus, if one board is defective and breaks, the other will hold until the user can get down from the ladder.

Another object is-to provide a ladder than can be knocked down or disassembled, thus making its transportation from place to place easier.

Other objects will in part be obvious and in part will be pointed out hereinafter.

To the attainment of the aforesaid objects and ends, the invention also resides in those novel details of construction, combination and arrangement of parts which shall be first described hereinafter and will then be specifically pointed out in the appended claims, reference being had to the accompanying drawings, in which:

Fig. 1 is a front elevation of a ladder embodying my invention.

Fig. 2 is a vertical section on line 2--2 of Fig. 1.

Fig. 3 is an enlargeddetail perspective view of one of the spacer-block-step-supports shown in Fig. 1.

Fig. 4 is an enlarged detail, inverted perspective view of a portion of one of the steps of the ladder shown inl Fig. 1.

In the drawing, like numerals of reference indicate like parts in all the flgures.

As shown in Figs. 1 to 4, outer and inner bars I I, I! respectively are spaced apart by end blocks I: and by the step-supporting bifurcated blocks Il. One leg of each block I4 lies between the bars I I, IZ, while the other leg lies. against the outer face of the inner bar l2, as best shown in Fig. 3. The blocks I 4 are secured to the bars II, I! by naillng, bolting or riveting, as at 22.

Each block II extends far enough in front of the uprlghts II, I2 to leave a slot I 5 to receive the end I 9 of a plate 18, Secured to the under side of a step I 1. Each block Il is preferably provided with a recess IG in which the plate I8 lies while the step Il rests onthe block II. Block I4 and end IS may have registering apertures 2I, 20 respectively, for pins,fbolts or screws, as desired.

When steps I'l have the ends I9 of their plates II set in slots IS, the plates will rest in recesses IE while the steps '--will set on the upper edges of the blocks Il, as sh'o'wn in Fig. 2.

From the foregoing it will be seen that, should one bar I I or I2, be defective and break, the ladder will not be pulled apart as the other bar of a side-piece or leg will hold and take the strain at the break until the necessary repairs can be made.

While my invention is especially adapted to wooden ladders, other materials than wood may be used if desired.

From the foregoing description, taken in connection With the accompanying drawing, it is thought that the construction, uses and advantages of my invention Will be clear to those skilled in the art.

VWhat I claim is:

1. In a Step-ladder, two side-pieces each composed of a pair of fiat bars spaced apart, a set of blocks each of approximately U-shape in plan view, one leg of each block being located between the bars of a pair and the other leg of each block being located along one side of one of said bars, means securing the legs of each block to the side-pieces, each block projecting forwardly of saidA side-pieces to which the block is Secured to provide vertical slots, and steps mounted on the blocks of the pair of side pieces.

2. In a step-ladder, two side-pieces each composed of a pair of flat bars spaced apart, a set of blocks each of approximately U-shape in plan view,A one leg of each block being located between the bars of a pair and the other leg of each block being located along one side of one of said bars, means securing the legs of each block to the sidepieces, each block projecting forwardly of said side-piece to which the block is Secured to provide vertical slots, steps mounted on the blocks of the pair of side pieces, one of the forwardly projecting portions of each of said blocks having a recess, and cross-plates Secured to the underside of each step and in part lying in said recesses and having down-turned ends to lie in said vertical slots.

MICHAEL J. BATELJA.

REFEREN CES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS 

